+/*
+ * MPEG1 codec / MPEG2 decoder
+ * copyright (c) 2000,2001 Fabrice Bellard
+ * copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
/**
* @file mpeg12data.h
* MPEG1/2 tables.
*/
-const int16_t ff_mpeg1_default_intra_matrix[64] = {
- 8, 16, 19, 22, 26, 27, 29, 34,
- 16, 16, 22, 24, 27, 29, 34, 37,
- 19, 22, 26, 27, 29, 34, 34, 38,
- 22, 22, 26, 27, 29, 34, 37, 40,
- 22, 26, 27, 29, 32, 35, 40, 48,
- 26, 27, 29, 32, 35, 40, 48, 58,
- 26, 27, 29, 34, 38, 46, 56, 69,
- 27, 29, 35, 38, 46, 56, 69, 83
+const uint16_t ff_mpeg1_default_intra_matrix[64] = {
+ 8, 16, 19, 22, 26, 27, 29, 34,
+ 16, 16, 22, 24, 27, 29, 34, 37,
+ 19, 22, 26, 27, 29, 34, 34, 38,
+ 22, 22, 26, 27, 29, 34, 37, 40,
+ 22, 26, 27, 29, 32, 35, 40, 48,
+ 26, 27, 29, 32, 35, 40, 48, 58,
+ 26, 27, 29, 34, 38, 46, 56, 69,
+ 27, 29, 35, 38, 46, 56, 69, 83
};
-const int16_t ff_mpeg1_default_non_intra_matrix[64] = {
+const uint16_t ff_mpeg1_default_non_intra_matrix[64] = {
16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16,
{0x20, 8}, {0x16,13}, {0x15,13}, {0x1f,15},
{0x1e,15}, {0x1d,15}, {0x1c,15}, {0x1b,15},
{0x1a,15}, {0x19,15}, {0x13,16}, {0x12,16},
- {0x11,16}, {0x10,16}, {0x05, 5}, {0x07, 7},
- {0xfc, 8}, {0x0c,10}, {0x14,13}, {0x07, 5},
- {0x26, 8}, {0x1c,12}, {0x13,13}, {0x06, 6},
- {0xfd, 8}, {0x12,12}, {0x07, 6}, {0x04, 9},
- {0x12,13}, {0x06, 7}, {0x1e,12}, {0x14,16},
- {0x04, 7}, {0x15,12}, {0x05, 7}, {0x11,12},
- {0x78, 7}, {0x11,13}, {0x7a, 7}, {0x10,13},
- {0x21, 8}, {0x1a,16}, {0x25, 8}, {0x19,16},
- {0x24, 8}, {0x18,16}, {0x05, 9}, {0x17,16},
- {0x07, 9}, {0x16,16}, {0x0d,10}, {0x15,16},
- {0x1f,12}, {0x1a,12}, {0x19,12}, {0x17,12},
- {0x16,12}, {0x1f,13}, {0x1e,13}, {0x1d,13},
- {0x1c,13}, {0x1b,13}, {0x1f,16}, {0x1e,16},
- {0x1d,16}, {0x1c,16}, {0x1b,16},
+ {0x11,16}, {0x10,16}, {0x05, 5}, {0x07, 7},
+ {0xfc, 8}, {0x0c,10}, {0x14,13}, {0x07, 5},
+ {0x26, 8}, {0x1c,12}, {0x13,13}, {0x06, 6},
+ {0xfd, 8}, {0x12,12}, {0x07, 6}, {0x04, 9},
+ {0x12,13}, {0x06, 7}, {0x1e,12}, {0x14,16},
+ {0x04, 7}, {0x15,12}, {0x05, 7}, {0x11,12},
+ {0x78, 7}, {0x11,13}, {0x7a, 7}, {0x10,13},
+ {0x21, 8}, {0x1a,16}, {0x25, 8}, {0x19,16},
+ {0x24, 8}, {0x18,16}, {0x05, 9}, {0x17,16},
+ {0x07, 9}, {0x16,16}, {0x0d,10}, {0x15,16},
+ {0x1f,12}, {0x1a,12}, {0x19,12}, {0x17,12},
+ {0x16,12}, {0x1f,13}, {0x1e,13}, {0x1d,13},
+ {0x1c,13}, {0x1b,13}, {0x1f,16}, {0x1e,16},
+ {0x1d,16}, {0x1c,16}, {0x1b,16},
{0x01,6}, /* escape */
{0x06,4}, /* EOB */
};
{ 0xc, 10 },
};
-static const AVRational frame_rate_tab[] = {
+const AVRational ff_frame_rate_tab[] = {
{ 0, 0},
{24000, 1001},
{ 24, 1},
56,64,72,80,88,96,104,112,
};
-uint8_t ff_mpeg1_dc_scale_table[128]={
+const uint8_t ff_mpeg1_dc_scale_table[128]={
// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
};
-static uint8_t mpeg2_dc_scale_table1[128]={
+static const uint8_t mpeg2_dc_scale_table1[128]={
// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
};
-static uint8_t mpeg2_dc_scale_table2[128]={
+static const uint8_t mpeg2_dc_scale_table2[128]={
// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
};
-static uint8_t mpeg2_dc_scale_table3[128]={
+static const uint8_t mpeg2_dc_scale_table3[128]={
// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
};
-static uint8_t *mpeg2_dc_scale_table[4]={
+static const uint8_t *mpeg2_dc_scale_table[4]={
ff_mpeg1_dc_scale_table,
mpeg2_dc_scale_table1,
mpeg2_dc_scale_table2,
- mpeg2_dc_scale_table3,
+ mpeg2_dc_scale_table3,
};
static const float mpeg1_aspect[16]={
1.0000,
0.6735,
0.7031,
-
+
0.7615,
0.8055,
0.8437,